Means for opening cement sacks, bags and the like



July 10, 1934. I. D. MCCAULEY 1;966,0l6

MEANS FOR OPENING CEMENT SACKS, BAGS, AND THE LIKE Filed March 9, 1954 2 Sheets-Sheet l L;1/ J E ,//2 .9

7 Inveplor July 10, 1934. McCAULEY 1,966,016

MEANS FOR OPENING CEMENT SACKS, BAGS, AND THE LIKE Filed March 9, 1954 2 Shets-Sheet 2 Patented July 10, 1934 UNITED STATES MEANS FOR OPENING CEMENT SACKS, BAGS AND THE LIKE Irvin Dudley McCauley, Arp, Tex.

Application March 9, 1934, Serial No. 714,862

5 Claims.

The present invention relates to a device in the nature of a power driven saw for the purpose of opening cement sacks, bags, cloth and paper material.

The object of the invention resides in the provision of means on which a bag may be placed and said means will swing down into engagement with the saw to permit of the cutting action and 7 means associated with the first mentioned means whereby said first mentioned means will be swung up out of the way after the bag or the like has been emptied.

Another very important object of the invention resides in the provision of an apparatus of this nature which is simple in its construction, inexpensive to manufacture, strong and durable, thoroughly efficient and reliable in use and otherwise well adapted to the purpose for which it is designed.

In the drawings:

Figure 1 is a top plan view of an apparatus embodying the features of my invention.

Figure 2 is a vertical transverse section taken substantially on the line 2-2 of Figure 1, and

Figure 3 is a perspective View of the grill.

Referring to the drawings in detail it will be seen that the letter H denotes a hopper which in the present exemplification of the invention is in the nature of an attachment to an oil well cementing truck and is well known in the art. In the bottom of the hopper is suitable means 5 for conveying the cement into the mixer.

Now referring particularly to my invention it will be seen that the numeral 6 denotes a power driven shaft journalled in the side of the hopper. On this shaft in the center of the hopper there is fixed a circular saw 7. On the shaft 6 are projecting fingers 8 in staggered relationship to each other. A pair of hook like brackets 9 are mounted 'on the slanting wall 10 of the hopper H and on the vertical wall 11 of said hopper opposed to the wall 10 there is mounted a pair of stop brackets 12 at about the same level as the brackets 9. A grill G is in the form of a rectangular frame having a pair of cross members 14 one to each side of the center of the frame in spaced parallelism. Additional cross members 15 are provided in the frame between the members 14 and the ends of the frame. Longitudinal members 16 connect the 'central portions of the ends of the frame with the cross members 15 and similar longitudinal members 1'7 connect the cross members 14 and 15. The space between the members 14 is provided so that the circular saw may project therethrough. One longitudinal side of the frame is engaged in the hook brackets 9 and the other longitudinal side is adapted to abut the stops 12. Coil springs 18 are engaged with said other side of the frame and are supported by hook brackets 19 on the upper portion of the wall 11 and normally maintain the grill in the position shown in Figure 2. With the saw circulating in the direction of the arrow in Figure 2 it will be seen that when a bag of cement or the like is placed on the grill the weight of the bag will be suflicient to swing the grill G downwardly against the tension of the spring 18 causing the teeth of the saw to contact with the bag and permitting the contents of the bag to flow therefrom onto the scattering apparatus formed by the shaft and the fingers 8. This scattering apparatus breaks up and disintegrates hard and lumpy cement. After the bag has emptied the grill will swing up to its normal position as shown in Figure 2 and the bag may be easily removed.

It is thought that the construction, operation, utility and advantages of this invention will now be understood without a more detailed description thereof.

The present embodiment of the invention has been described in considerable detail merely for the purposes of exemplification since in actual practice it attains the features of advantage enumerated as desirable in the statement of the invention and the above description.

It will be apparent that changes in the details of construction, and in the combination and arrangement of parts may be resorted to without departing from the spirit or scope of the invention as hereinafter claimed or sacrificing any of its advantages.

Having thus described my invention, what I claim as new is:

1. For use in an attachment to an oil well cementing truck, wherein the attachment includes a hopper, of an apparatus for emptying a bag or the like comprising a rotating cutting member and a swingably mounted grill for holding the bag adjacent the cutting member so that a portion of the bag may be severed thereby.

2. For use in an attachment to an oil well cementing truck, wherein the attachment includes a hopper, of an apparatus for emptying a bag or the like comprising a rotating cutting member and a swingably mounted grill, and means for normally holding the grill above the cutting means.

3. In a bag emptying apparatus, a rotating saw, a grill, means for hingedly mounting the grill so that it may swing downwardly with a 5. For use in an attachment to an oil well cementing truck, wherein the attachment includes a hopper, of an apparatus for emptying a bag or the like comprising a rotating cutting member and a swingably mounted grill, and means for normally holding the grill above the cutting means, and stop means limiting the downward swinging movement above the grill, said grill being in the form of a rectangular frame having a pair of spaced parallel cross members one to each side of the center thereof.

IRVIN DUDLEY MCCAULEY. 

